Sharmila Ranasinghe

Java | Spring boot | AWS | Quarkus | ReactJS | Microservices | REST | JSON

Novatti Acquiring Project - payment gateway to pay and be paid, from any device, anywhere, from corner stores and startups to global organizations.

• Designed and developed payment solutions employing AWS event-driven, serverless architectures, and Java, SpringBoot, and Quarkus.
• Initiated and executed systematic refactoring activities for legacy components, adhering to clean code guidelines, best practices, and Object-Oriented Design principles, including SOLID. This enhanced code readability, maintainability, and performance.
• Optimized query performance in DynamoDB by integrating OpenSearch Serverless for efficient search and indexing of large datasets
• Collaborated in identifying bottlenecks in the deployment and release process (CI/CD) and implemented solutions using AWS CDK, AWS CodeBuild, and AWS CodePipeline.
• Integrated Snyk plugin to identify and manage security vulnerabilities in their software applications and dependencies.
• Advocated and implemented TDD practices, writing comprehensive unit, component, and end-to-end (E2E) tests using JUnit, TestContainers (LocalStack), and JEST, improving test coverage by about 40.
• Monitored system performance and identified areas of improvement.
• Performed unit testing on application components prior to release.
• Documented software development processes and procedures for future use.
• Collaborated with team members to ensure successful project completion within timeline constraints.

Java | Spring Boot | SQL| Mongo | Junit | Jira | Jenkins | Microservices | OSGI services | Adobe analytics | Jenkins

A web-based solution to provide customers of British Telecommunication with the capability to raise and manage Change Requests.

• Worked on two projects, COC project - Users can order a new product, update, or downgrade an existing product online, where they can track their request status.
• Global Service Project - Users can get help to manage broadband, switch to BT, and ask questions.
• Developed new features and implemented change requests in accordance with the requirements.
• Developed and maintained code to achieve the design specifications, software requirements, and technical concerns.
• Provided production support, debugging production issues, and problem resolution under strict deadlines.
• Worked on pushing real-time notifications to users for notifying status changes of their order products.
• Used Adobe Analytics to analyze data from any digital point in the customer journey and worked together with the Adobe team to fix issues.
• Tried to ensure code quality by following design patterns, doing peer reviews, and fixing Sonar code smells.

EmberJs | JavaScript | HTML | CSS | Bamboo | TortoiseGit | Bitbucket | JIRA | Agile Development | KanbanFlow

• A web-based trading portal that is based on the Rich Internet Application concept, where online customers are provided with dynamic features on a web browser interface.
• Worked as a front-end developer with following agile practices.
• Developed, tested and deployed software applications using Java, JavaScript, HTML and CSS.